Astronomical and Meteorological Records, &?c. 



Observations made at St. Louis, Missouri Territory. 



June 15, 1819. 



June 16, 1819. 



Equal altitudes of Sun to find the error of Time-piece. 



Time from Noon, 

 A. M. 



Error of Time- 

 piece. 



June 16, 1819. 



*d mean of eight Lunar distances, and the time corresponding, was 

 found as follows. 

 Time per Chrono- Distance of nearest 

 meter, A M. limbs. 



June 16, 1819. 



6" 34' 261' 



69° 51' 30i" 



Index Error. 



+ ^5^ 



Data resulting from the foregoing Lunar Observations. 



St. Louis, June 16, 1819. In latitude 38° 36' 18" N. and longi- 

 tude about 6" W. of the meridian of Greenwich, at 6^ 34' 26^" A. 

 TVI. civil account per chronometer, the distance of the nearest limbs 

 of the sun and moon was observed to be 69** 51' 46" to find the lon- 

 gitude. 



Longitude deduced, 6" 00' 25", or 90° 06' 15" W. of Greenwich. 



»N*ote. The chronometer run down on the night of the 16th, so 

 that the subsequent error in time, compared with the preceding, 

 aflfords no data to estimate the rate of the time-piece. 



Equal altitudes of Sun to find the error of Time-piece at noon. 



June 17, 1819. 



Time from Noon 

 A. M. 



4h 42' 23" 

 4 41 03 

 4 39 42i 



Time from Noon, 

 P. M. 



Error of Time- 

 piece. 



5' 201" fast. 

 Mean time. 



Observations at St. Louis, to ascertain the magnetic variation. 



June 17, 1819. 



Double altitude of 

 Sun's upper limb. 



Magnetic varia- 

 tion. 



